Or more specifically, I can log into the server, a bunch of textures are missing, then it boots me. This was a backup of my minecraft files not the server and the server works for others. SSP works fine.
1.4.5/1.111 and NEI is the only other mod (thus restoring to backup, was messing around with forestry).
2013-01-16 18:28:12 [INFO] [STDERR] java.net.SocketException: Socket closed
2013-01-16 18:28:12 [INFO] [STDERR] at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:116)
2013-01-16 18:28:12 [INFO] [STDERR] at java.net.SocketOutputStream.write(SocketOutputStream.java:153)
2013-01-16 18:28:12 [INFO] [STDERR] at aow.write(Unknown Source)
2013-01-16 18:28:12 [INFO] [STDERR] at java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:82)
2013-01-16 18:28:12 [INFO] [STDERR] at java.io.BufferedOutputStream.flush(BufferedOutputStream.java:140)
2013-01-16 18:28:12 [INFO] [STDERR] at java.io.DataOutputStream.flush(DataOutputStream.java:123)
2013-01-16 18:28:12 [INFO] [STDERR] at ci.run(SourceFile:120)